Posted 6/26/2017 22:25 (#6091775 - in reply to #6091527) Subject: RE: 4730 sprayer hydraulic chatter
Mid-Missouri
Our 4710 is just like that also. I think it only does it when pump is on and I operate one side up and the other side down while crossing terraces. Not low on oil either. I hear the pump maybe cavitate? It has done it for several years but have yet to try to determine why.